DEM numerical analysis of load transfers in granular soil layer

• Autorzy: Chevalier B. , Combe G. , Villard P.
• Konferencja: Proceedings of the 14th French-Polish Colloguium "Soli and Rock Mechanics. soil Mechanics - Geomaterials" Grenoble, August 29-31, 2007
• Języki publikacji: EN

Abstrakty

EN

Load transfers and other arching effects are mechanisms frequently met in civil engineering, especially in areas subject to karstic subsidence or in geotechnical earth structures such as piled embankments. The study proposed focuses on the numerical discrete analysis of granular material response submitted to specific boundary conditions leading to load transfer (embankment built overa trench or over a network of piles). The influence of several parameters has been studied: granular layer thickness, friction behaviour and particle shapes. Various load transfer mechanisms are observed, depending on the boundaries and also on the granular layer properties. The comparison between three-dimensional Discrete Element Modelling and analytical calculation methods leads to a various agreement, depending on the case treated.

Słowa kluczowe

EN

civil engineering; numerical discrete analysis; geotechnical earth

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2008
• Tom: Vol. 30, nr 1-2
• Strony: 147--163
• Opis fizyczny: bibliogr. 8 poz.,

Twórcy

autor

Chevalier B.

autor

Combe G.

autor

Villard P.

• Laboratoire 3S-R: Sols, Solides Structures et Risques, BP 53-38041 Grenoble cedex 9 France,

Bibliografia

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• [3] LOW B.K., TANG S.K., CHOA V., Arching in piled embankments, Journal of Geotechnical and Geoenvironmental Engineering, 1994, 120(11), 1917–1938.
• [4] EBGEO, Empfehlungen für Bewehrungen aus Geokunststoffen, Deutsche Gesellschaft für Geotechnik (Hrsg.) Verlag Ernst & Sohn, Berlin, 1997, Germany.
• [5] CUNDALL P.A., STRACK O.D.L., A discrete numerical model for granular assemblies, Géotechnique, 1979, 29(1), 47–65.
• [6] DONZÉ F.V., MAGNIER S.-A., Spherical Discrete Element Code, [in:] Discrete Element Project Report no. 2. GEOTOP, Université du Québec à Montréal, 1997.
• [7] CHAREYRE B., VILLARD P., Dynamic spar elements and DEM in two dimensions for the modelling of soil-inclusion problems, Journal of Engineering Mechanics – ASCE, 2005, 131(7), 689–698.
• [8] COMBE G., ROUX J.-N., Discrete numerical simulation, quasi-static deformation and the origin of strain in granular materials, 3ème Symp. Int. sur le Comportement des sols et des roches tendres, Lyon, 22–24 Septembre 2003, [in:] Di Benedetto et al., 1071–1078.